In both arms, patient well-being is measured at 0, 6, 12, 24, 36, 48, and 60 months after primary diagnosis, using the following questionnaires: the health-related quality of life questionnaire (RAND-36), the anxiety questionnaire (STAI version DY-1 [state] and DY-2 [trait]), the Cancer Worry Scale, and Follow-up Satisfaction questionnaire, and the self-designed specific questions regarding self-examination and follow-up satisfaction.